Unimak Island, Aleutian Islands, Alaska
54.52 N, 164.65 W
summit elevation 1645 m
Shield Volcano
Westdahl is located in SW Unimak Island.
There are at least 17 satellite vents SE and NW of the summit.
1991-92, 1979?, 1978, 1964, 1827-30, 1820, 1796, 1795